Unit test for atexit.c functionality
Register DB cleanup function after at least one DB is opened (Redmine #1627)

Otherwise cleanup function registered by DB library may kick in too early, so
CloseAllDB will crash.
Retire code that was moved to Enterprise
Merge pull request #225 from markburgess/master

Remove retired code
Factor out keyring.h and export RemovePublicKey. This is now reused by cf-hub for keys cleanup. Redmine #785
Fix PrintRval and PrintItemList truncation #1680
Merge pull request #226 from maciejmrowiec/master

Fix PrintRval and PrintItemList truncation #1680
spell fixes to manuals
Merge pull request #227 from cf-gary/master

spelling fixes to manuals
add notes and example for listen attribute
bugfix listen attribute notes and example
Merge pull request #228 from cf-gary/master

add notes and example for listen attribute
Modify doc image
Add a last seen/freshness to the vital signs to detect downtime in the monitord
Merge pull request #231 from markburgess/master

Add freshness data to vital signs so we can see when an average trace has not been updated
Move TimeCounter2Int from conversion -> process_select

Only used in process select. While it could have been useful for
this to remain in conversion.h, this conversion function also does
reporting.
Move Str2Mode from conversion.h -> constraints.c
Factor out files_operators.h
Factor out matching.h
Factor out instrumentation.h